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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
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    <article id="a1">一篇文章

        <span>作者</span>
        <span>发布时间</span>
    </article>
    <div class="box">
        <a class="link" href="https：//baidu.com">
            百度
        </a>
        <a class="link" href="http://sina.com">
            <span>
                新浪
            </span>
        </a>
    </div>
    <div class="box">
        普通的容器
    </div>
    <!-- <div>注释</div> -->
    <form action="">
        <label for="male">男</label>
        <input type="radio" name="gender" id="male">
        <label for="female">女</label>
        <input type="radio" name="gender" id="female">
    </form>
    
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